Nine flavonol derivatives were studied. Previously reported NMR data of three of these derivatives were corrected. We report complete assignments of the NMR data for six flavonol derivatives not previously studied.
Complete 1H and 13C assignments of some epipodophyllotoxin derivatives
β Scribed by Zaesung No; Sueg-Geun Lee
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 96 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.1167
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β¦ Synopsis
Abstract
The complete analyses of the ^1^H and ^13^C NMR spectra of the ortho ester analogues of etoposide are reported and differentiation of the Ξ± and Ξ² isomers of these derivatives is suggested by using the Ξ³βgauche effect upon the ^13^C chemical shift. Copyright Β© 2003 John Wiley & Sons, Ltd.
π SIMILAR VOLUMES
## Abstract ^1^H and ^13^C NMR data for six phenoβthiazine derivatives are reported. Spectral assignments were made on the basis of twoβdimensional homonuclear ^1^H,^1^H and heteronuclear ^1^H,^13^C correlation techniques (COSY, COSYβLR, HETCOR, COLOC) and ^13^C,^1^H coupling constant measurements.
## Abstract Six flavone derivatives were studied. Previously reported NMR data of three of these derivatives were corrected and the NMR data for the other three derivatives not studied previously were completely assigned on the basis of the basic 1D and 2D NMR experiments and molecular modeling. Co
## Abstract The complete ^1^H and ^13^C NMR data of 27 pravastatin derivatives are presented. Assignment was achieved by use of 1D and 2D NMR experiments (selective 1D NOE, COSY, NOESY, HSQC, HMBC). Copyright Β© 2008 John Wiley & Sons, Ltd.
The 1 H and 13 C NMR resonances of 12 tetracyclic phenothiazine derivatives were completely and unequivocally assigned by the concerted application of 1 H-detected heteronuclear one-bond (gs-HMQC) and long-range (gs-HMBC) gradient selected correlation experiments. 1 H and 13 C chemical shifts are al